SPF Scout · Ingredient
Octadecene/MA Copolymer
CAS 25266-02-8
What this ingredient generally does
This is a film-forming polymer that works as a light stabilizer and thickness adjuster. It helps keep the formula's other components steady when exposed to light, and it fine-tunes how thick or fluid the product is.
Reviewed before publication. This note describes function in a formulation — nothing else.
Published formulations that list this ingredient
These are the formulations currently published in the SPF Scout catalog whose stored ingredient declaration includes this ingredient. It is not a list of every product on the market, and the order carries no meaning.
Kroger Kroger Sunscreen
U.S. formulation
Walgreens Walgreens Sunscreen
U.S. formulation
Checking this against your own list
You can select this ingredient in the SPF Scout app as one to flag. The app compares your selections against a product's stored declaration on your device; your list never reaches this website.
This comparison does not predict whether your skin will react.
Where this information comes from
Ingredient names, CAS numbers and recorded functions come from SPF Scout’s curated ingredient dictionary, grounded in CosIng, the European Commission’s Cosmetic Ingredient Database. Content © European Union, reused with acknowledgement.